Sony Vaio PCG-K215B Software Manual page 56

Software Guide
5 Double-click the option corresponding to the device you installed, then double-click your device.
The Properties dialog box appears.
6
Click the Driver tab.
7 On the Driver tab, click Roll Back Driver.
You have your previous driver back.
✍
You must be logged on to your computer with administrator rights in order to complete this procedure.
Restoring your computer does not affect or change your personal data files.
For more information about System Restore, see the Windows Help and Support Centre.
n N
55
Managing drivers